PAPER SELECTED

Progesterone was assayed in skim milk fraction of 38 cystic cows, 26 (68.4%) of which had basal (<0.5 ng/ml) progesterone concentrations and were diagnosed as having follicular cysts. These cows were allotted at random to one of 3 treatments: (1) a shame injection of sterile water in 7 cows as controls